Libraries were originally designed as a place for homeless people to use the bathroom, however, since the spread of the outdoor fountain, they have primarily become a place for unsatisfied housewives to rent Gray's Anatomyon DVD.
You are free to access any type of information you want--unless you are at a public library where the library board has set up computer filters to protect you from yourself. If you are at a school library, parents have stripped the shelves of any books that might be of danger to you. If you are at an academic library you are probably a communist or hippie.